The immune system contains receptors for endorphins and neuropeptides. It travels through the entire body contacting every cell. If the system recognizes cells, they leave them alone. If they do not recognize the cells, they attack, thereby defending the body against bacteria and virus infected cells. There are connections between the immune system and the central nervous system. The immune system responds to chemicals and secretes chemical messages. The immune system has nerve cells that connect the brain to the spleen and other organs producing immune cells. Stress can affect the immune system.
Organs of the immune system are called lymphoid organs. These organs produce the white blood cells that mediate the immune system. These white blood cells are called lymphocytes. Lymphocytes are produced in the bone marrow. One particular set, the T-cells, spend time in the thymus where they mature and develop the ability to distinguish self from nonself. They travel constantly through the body. A small number stand alert in the lymph nodes and spleen which have specialized compartments for different kinds of immune system cells. These organs all contain networks of nerve cells that allow the brain and central nervous system to influence immunity.
There are Different Kinds of Immune System Cells
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LYMPHOCYTES Small white blood cells that attack any potential threats to the body.
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B-LYMPHOCYTES These B-cells were the first to be discovered. They produce circulating antibodies. Antibodies are tiny proteins that attach to bacteria, viruses and other foreign invaders (antigens). Each B lymphocyte produces only one kind of antibody. One attacks the cold, another attacks bacteria in pneumonia.
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T-LYMPHOCYTES These are called T cells. They originate from the thymus gland. They do not produce antibodies but directly attack foreign invaders. There are different kinds of T cells, and each have different functions.
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Cytoxic T cells These killing cells attack only one kind of infected cell or agent such as cancer cells, viruses , etc.
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Natural killer cells (NK) constantly patrol the body looking for dangerous foreign cells. When they find a dangerous cell they attach and release toxic chemicals that destroy the invading cells by attacking cancer cells and bacteria.
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Helper T cells These stimulate B lymphocytes to make antibodies.
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Suppresser T cells These shut off helper T cells once enough antibodies are produced.
Communication between these cells occur by interferons, interleukines and other chemical messagers that govern the immune system. There should be a balance between helper and suppresser T cells. Acupuncture restores this balance.
The body's way to defend against infections, cancers, viruses, and foreign substances is to identify, destroy, inactivate or eliminate them.
There are Two Systems of Action in the Immune System - Blood and Cellular
The blood system is controlled by the B lymphocytes that produce antibodies. Antibodies are proteins that defend against bacteria and viruses found in body fluids.
The cellular immune system responds against cancer cells and viruses that are inside the body's cells. They are aided by T lymphocytes and macrophages whose job it is to surround and dissolve the invaders. They are also aided by natural killer cells (NK) that defend against virus infected cells and cancer.
An underactive immune system is seen in AIDS. An overactive immune system cannot distinguish between self and non self and is at risk for allergies and auto immune disease such as arthritis. Immune dysfunction can contribute to the development and spread of cancer. Acupuncture can stimulate and balance the immune system.
How Does Cellular Immunity Work?
Viruses (antigens) enter the blood and cells respond.
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Cells present the virus to helper T cells that can recognize it.
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Macrophages (specialized cells) engulf the virus and present it to the helper cells.
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Helper cells mature and multiply rapidly to fight off the virus. They activate cytotoxic T cells who find and destroy the virus infected cells.
Common Immunity Problems
Herpes Viruses remain for life unlike other viruses. They flare up unpredictably. Examples of herpes viruses are; genital, cold sores, infectious mono, cytomegalic virus, chicken pox, shingle, and epstein virus. The cellular immune system keeps them down. When this is not adequate, the body produces antibodies to the virus. When antibodies are high, it means the virus is not controlled. Higher antibodies to herpes is a sign of low immune function.
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Epstein virus is high in cases of mono and Alzheimers.
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HSVI virus is high in cold sores and psychiatric patients.
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Cytomegalic virus is high in artheriosclerosis, chronic fatigue syndrome, and transplant organs, and cancer.
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HSV6 virus is high in multiple sclerosis
Allergies are triggered when the immune system becomes oversensitized to something in the environment. There is an intense inflammatory response when the allergen is present. The allergen stimulates antibodies which stimulate mast cells (white blood cells). Histamine is then stimulated, which inflames the nose and eyes.
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Autoimmune Diseases like allergies result in excess immune system activity. Rheumatoid arthritis, lupus, and type I diabetes are examples of this. Antibodies identify the body's healthy cells, and identifies them as foreigners. These antibodies then invade and attack these normal cells resulting in chronic inflammation. Acupuncture can suppress this excess reaction and thus decrease the chronic inflammation.
Cancer and AIDS Many scientists feel that cancer cells arise in the body all the time but are held in check by immune cells. When the immune system is ineffective, they clump together forming cancer tumors ( similar to snow flakes becoming a snow ball ). In AIDS, there is a destruction of the cellular immune system that kills key helper T cells.
Vaccinations When the body is under stress it is likely to produce antibodies to the vaccine and more boosters are needed.